John H. Chalmers Jr.

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing antibiotic A21A
- Patent number 4,175,007
- Issue date Nov 20, 1979
- Merck & Co., Inc.
- Sheldon B. Zimmerman
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Antibiotic A21A
- Patent number 4,071,631
- Issue date Jan 31, 1978
- Merck & Co., Inc.
- Sheldon B. Zimmerman
- C07 - ORGANIC CHEMISTRY